Muffler cut-out



me w, 1924.

O. T. BACKLUND 'MUFFLER CUT-QUT Filed Feb. 9, 1925 61H01 nlug Patented .lune 10, 1924.

OSCAR T. BACKLUND, OF DEER LODGE, MONTANA.'

inurrnnn CUT-OUT.

Application led February 9, 1923.

T all whom t may concern.'

Be it known thatOsoAR T. BAoxLUND, a citizen of the United States of -America, re-

4 siding at Deer Lodge, in the county of 'L exhaust pipes of automobiles already in use and therefore which is adapted to be produced and handled as an accessory; and with these objects in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is a side view of a cu'tout mechanism constructed in accordance with the invention applied in the operative position to a motor exhaust.

Figure 2 is a sectional view of the motor exhaust pipe showing in full and dotted lines respectively the cutout in its operative and inoperative positions.

Figure 3 is a transverse sectional view on a plane indicated by the line 3 3 of Figure 1.

Figure 4 is a detail perspective view of the extremity of the operating lever connected with the valve.

The device is applicable to a motor exhaust pipe 10 of the ordinary construction usually communicating with or terminating in a muflier 11 or its equivalent, and in preparation for the application thereto of the cutout this exhaust pipe is provided with an outlet opening 12 to which is fitted a valvey 13 of approximately pear shape and havin a transverse curvature corresponding wit that of the exhaust pipe. The outlet opening of the exhaust pipe is preferably of a similar shape but slightly smaller than the valve so that when the valve is in its normal or closed position it serves to prevent exhaust through said outlet and cause the exhaust from the motor to pass to the mufier as in the ordinary practice.

The valve is provided at a point intermediate of its length with a slot 14: through which extends one end of an operating lever 15 engaged at the inner surface of the valve by a cotter pin 16 or its equivalent and Serial No. 818,031.

provided outside of the plane of the valve with a stop shoulder 17. The base or broadest portion of the valve is of a width approximately equal to the interior diameter of the exhaust pipe and therefore when the operating lever is swung upon its pivotal point or axis 19 to move the valve from its inoperative or closed position` to its operative or out-let opening position, the valve wit-houtother attachment to or mounting in the exhaust pipe swings upon a center represented by the broadest portion of its base to assume an oblique position in the exhaust pipe as shown bythe full lines in Figure 2.

The operating lever is mounted upon a bolt constituting the pivot or axis 19 which is carried by a bracket or clamp 20 embracing the exhaust pipe `and heldin place by a clamping bolt 21, and said lever is yieldingly held in a position to maintain the valve in the closed or inoperative position by a spring 22 connecting said clamp with the free end of the lever, and operatively connected with said free end of the lever is a push rod 23 having a knob or table head 24 exposed wit-hin convenient reach of the operator as adjacent to the foot board of the car. Also in this connection as a means of holding the cutout in the open position a catch plate 26 may be employed to form a guide for the plush rod which may be litted with a shoulder 27 for engagement therewith when the button or table is depressed to open the outlet.

Having described the invention, what is claimed as new and useful is 1. A muffler cutout having in combination with an exhaust pipe provided with a lateral outlet opening, a valve loosely fitted in the pipe, an operating lever loosely connected with the valve for movement diametrically of the pipe, and operating means for said lever, the valve being of pear shape with its maximum width corresponding substantially with the diametrical dimension of the exhaust pipe.

2. A muffler cutout having in combination with an exhaust pipe provided with a lateral outlet opening, a valve loosely fitted in the pipe, an. operating lever loosely connected with the valve for movement diametrically of the pipe, and operating means for said lever, the valve being of pear shape with its maximum width corresponding substantially with the diametrical dimension of the exhaust pipe, and the operating lever having a loose connection therewith to permit ot' rocking movement of the valve with relation thereto.

3. A muler cutout having in'combination with an exhaust pipe provided with a lateral outlet opening, a valve loosely itted in the pipe, an operating lever loosely connected With the valve for movement diametrically of the pipe, and operating means for said lever, the valve being of pear shape with its maximum Width corresponding substantiall)7 with the diainetrical dimension of the exhaust pipe, and the operating` lever having a loose connection therewith to permit of rocking movement of the valve with relationthereto, said lever being provided with a stop 'shoulder `for Contact With the ex terior surface of 4said valve.

"4. A'r'nuiiier 'cutout having in combination With 'an'exhaust pipe provided with a lateral outlet opening, a valve loosely fitted in the pipe, an operating lever loosely connected `\vith the valve 'for lmovement diametrically of the pipe, and operating means forsaid lever, vthevalve being transversely arched' to correspond with the diameter of the exhaust pipe and being substantially pear shaped with its greatest Width approximating the diametrical dimension of the said pipe, and the operating lever having a terminal extended through an opening in said valve and iitted With a cotter pin.

5. A muilier cutout having in combination with an exhaust pipe provided with a latteral outlet opening, a valve looselv itted in the pipe, an operating lever loosely connected with the valve for movement dia metrically of the pipe, and operating means for said lever, the valve being transversely arched to correspond with the diameter of the exhaust pipe and being substantially pear shaped With its greatest Width approximating the diametrical dimension` of the said pipe, and the operating lever having a terminal extended through an opening in said valve and fitted with a cotter pin, and a stoprshoulder for contact respectively with the inner and outer surfaces of the valve. i In testimony where-of he atiixes yhis signature.

osoAR rr. BAGKLUND. 

